Mix shortening, sugar, eggs(mixing well), stir in bananas, buttermilk and vanilla. Stir in dry ingredients and nuts. Chill dough for 1 hour. Drop by teaspoon on lightly greased cookie sheet and bake approximately 12-14 minutes in oven heated at 375 F degrees. Icing: Mix cream cheese, butter, milk, vanilla and powdered sugar. Beat well.

Icing: 

1 (3 ounce) package cream cheese
1/3 cup butter
1 tablespoon milk
1 tablespoon vanilla
2 cups powdered sugar